Tile Lippage Credit Card Test

When two tiles are next to each other i expect them to be smooth when i run my hand from one to the next. This is defined in the ansi american national standards institute standard a108 02 section 4 3 7. Variation in the height of adjoining tiles is called lippage.

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What Is Excess Lippage

I tried the credit card test that bill referenced in a post years ago and most pass but there are at least 4 spots i could find i didn t check the entire floor yet that concern me and failed the card test.

Tile lippage credit card test. We had to replace a tile in a bath recently that was about a dime thickness higher than the next one. The light of afternoon sun just made the lippage looked worse. The tile on the right is approximately 1 5 mm lower than the one on the left two credit cards. This is where the credit card test comes from.

The higher tile has a chipped corner as a result. The grout was applied pretty low along grout line. The sharp edges of rectified tiles plus lippage hurt my feet when walked on it. It depends on the type of tile and the specified width of the grout joint to determine what is the acceptable amount of tile lippage.

Op said the tiles were uniformly flat and even thickness so i can t see why there needs to be any lippage here. The second installation i still think is not right. Tile size affects tile installation. Ansi a108 02 standards say that acceptable lippage for tiles with a grout joint width of 1 16 to less than 1 4 is 1 32 plus the allowable inherent warpage of the tile.

Might get away with a dimes worth but that doesn t mean it s really acceptable. In faux wood tile sophistication we mentioned how important it is to pay attention to offsets when installing tile the reason. The contractor laid a credit card down on a tile edge where there was lippage and once the card was pushed against the next tile the adjoining surfaces where smooth. I looked closer and it is clear that there is considerable lippage occuring in different spots in the bathroom.

I measured now the remaining lippage heights are from credit card thickness to penny thickness on both the long and short sides of the. Lippage refers to differences in elevation between edges of adjacent tile modules the ansi standard notes that the perception of lippage is influenced by many factors such as. Tile lippage test on our current bathroom remodel showing a flawless lippage free instal every time. Offsets and grout joints are particularly critical when you are installing larger tile sizes and rectangular tile such as a wood plank tile where the length is much greater than the width.